Astrobiology

Sketch of the magnetospheric interaction in the TRAPPIST-1–TRAPPIST-1e system. The stellar wind velocity and IMF streamlines are drawn in green and white, respectively. The M dwarf star is shown as

Left, difference in wmf between two different hydrosphere assumptions and the default model. Red dotted is models with the surface temperature raised to create a layer of liquid water instead

dimethyl sulfide – WIkipedia Context: Dimethyl sulfide (DMS; CH3SCH3) is an organosulfur compound that has been suggested as a potential biosignature in exoplanetary atmospheres. In addition to its tentative detections

Mass-radius diagram for all 64 targets in our full sample, including confirmed planets (star markers) and null detections (square markers). The colour of each of the planet markers indicates their

Graphic showing the Mid-Atlantic Ocean Ridge (red line) and how melting ice from Greenland caused changes in the motion of Earth’s crust (purple arrows). — University of Colorado at Boulder

NASA’s Curiosity rover appears as a dark speck in this contrast-enhanced view captured on Feb. 28, 2025, by the HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter. Trailing Curiosity are the

a）Element mapping of the syntheic pyrope garnet at high-pressure and high-temperature（b）Variation of the water content of pyrope garnets with pressure and temperature in the present and previous studies. — Credit

Mars — NASA/USGS Around the equator, for example, vast networks of channels spread from Martian highlands, branching like trees and emptying into lakes and even, possibly, an ocean. NASA’s Perseverance

A southward-looking panorama combining images from both cameras of the Mast Camera (Mastcam) instrument on NASA’s Curiosity Mars Rover shows diverse geological textures on Mount Sharp. This work examines the